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Patents > CPCs : CPC B64B1/40 or CPC B64C17/00 & Number of figures: 3-6

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Tech fields:
stability (194) · Airplane (140) · automatic stability (87) · design (51) · LTA (44) · None (42) · control (36) · frame (28) · aerodynamics (26) · equilibrium (26) · subsystem (23) · wings (22) · navigation (20) · Rudder (19) · lift (15) · construction (15) · pendulum (14) · balloon (14) · safety (13) · steering (11)
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None (222) · Patent US-1908-989022 (3) · Patent US-1908-1077750 (3) · Patent HU-1909-49726 (2) · Patent FR-1909-399456 (2) · Patent FR-1909-401348 (2) · Patent FR-1910-415470 (2) · Patent FR-1912-442419 (2) · Patent FR-1914-475066 (2) · Patent NZ-1909-25865 (2) · Patent NO-1915-12-15 Carl Alfred Johansson (2) · Patent DE-1911-11-16 Otto Albin Budig (2) · Patent US-1908-1081147 (2) · Patent US-1910-999125 (2) · Patent US-1911-1003530 (2) · Patent US-1911-1030764 (2) · Patent DK-1913-19885 (2) · Patent US-1917-1257212 (2) · Patent BE-1911-05-15 Georges de Bothezat (2) · Patent BE-1912-08-13-Panian (2)
Related to aircraft:
Patent agent:
None (73) · None (18) · Armengaud jeune (15) · Victor J. Evans (11) · Charles Dony (8) · Marks & Clerk (7) · Schwab (6) · P. Follin (6) · C. Blétry (4) · Société A. Frey et de Carsalade (4) · Rigot et Prévost (4) · Lavoix et Mosès (4) · Herbert Haddan & Co. (4) · Haseltine, Lake & Co. (4) · Edward Evans & Co. (4) · E. Blétry (4) · Hippolyte Josse (4) · Abel & Imray (4)
National tech categories:
FR 6.4 (172) · None (78) · USPC 244/80 (29) · DE 77h.5 (9) · USPC 244/93 (7) · USPC 244/32 (6) · USPC 244/127 (5) · USPC 244/33 (4) · USPC 244/99 (4) · USPC 244/96 (4) · DE 77 (3) · USPC 244/90R (2) · FR 6.3 (2)
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